Re: 70mm IR

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On  3 May 99 at 8:04, Tim Breen wrote:

> Willem-Jan,
> 
> A question: when shooting 70mm w/Bronica, is filtering on the lens the only
> option? I know almost nothing about medium format but am beginning to look
> at it pretty seriously.
> 
> Thanks!

Together with a list member, I recently did some research on a 
BTFR-related solution for the Bronica 70mm back (the one I had for 
sale is sold btw, and I am still not sure whether I can locate a 
second, as mentioned before).
At first I thought a larger filter might fit between body & back, 
inside the square ridge on the outside of the back, but I was told 
those two surfaces have a too close fit already (so the 0.4mm #87C 
won't work, but the 0.1mm #87 might). 
It seems there might also be room for a true BTFR-version, but again 
only the 0.1mm #87.
Not sure about mounting a filter in the camera, behind the mirror, as 
I don't have a Bronica ETRS body to check that....
[this is actually the original solution as written by Andy Davidhazy 
in a PhotoForum text file, which later resulted in the BTFR-version]


--                 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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